All Services Engineering & Architecture Backend Ninja $25/hr · Starting at $25 If you need something done in backend (with java), just hire me. I have experience of delivering robust systems on time. I have designed systems which are serving higly concurrent requests and with a response time of < 20ms. About $25/hr · Ongoing Download Resume If you need something done in backend (with java), just hire me. I have experience of delivering robust systems on time. I have designed systems which are serving higly concurrent requests and with a response time of < 20ms. Skills & Expertise Amazon AWSAmazon S3Amazon SQSBackendCassandraElasticsearchJavaSparkSystems Engineering 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Java DevelopersAmazon Web Services (AWS) ExpertsElasticsearch DevelopersAmazon S3 ServicesAmazon Simple Queue Services (SQS)